Marielyst is situated on the
Baltic coast of Falster. At the end of the last
ice age some 12,000 years ago, the melting ice left an long mound of clay, sand, and rocks extending from
Idestrup to
Gedser. Initially there were three islands, Langø, Bøtø, and Bøtø Fang, but these were later silted up. However, an inlet remained at
Gedesby leading into the Bøtø Nor lake stretching 16 km from
Sildestrup to Gedesby. Between 1860 and 1865, the inlet was closed, a dike was built, and the inland area was drained. Marielyst's white sand beach is the most western of those along the
littoral zone of five countries. In a survey of ten Danish beaches carried out in 2011, Marielyst's beach, stretching no less than , came in first with 19.2% of the votes. The soft white sandy beach was judged to be particularly suitable for children. Other localities along the beach are Eikenøre, Sildestrup, Stovby, Klit, and Bøtø with Marielyst at the centre. Behind the sand dunes along the beach, there is a dyke which was built at the end of the 19th century to protect the inland area from flooding, enabling it to be used for farming. A footpath (too narrow for bicycles) offers pleasant walks over the full 20 km stretch next to the sea. ==History==